Search results for "sentiment"
showing 10 items of 134 documents
"La présence chez Henri Maldiney: quel enseignement pour la réalité virtuelle?"
2021
La présence est le concept clé de la philosophie de Maldiney: peut-on établir un pont avec le sentiment de présence caractérisant une immersion réussie?
Do Investors Care About Noise Trader Risk?
2011
International audience; The link between investor sentiment and asset valuation is at the center of a long-running debate in behavioral finance. Using a new composite sentiment indicator, we show that the conventional risk does not explain the abnormal returns of portfolios most sensitive to the sentiment factor. Our result supports the existence of a sentiment risk valued by financial markets. We also find that the firms more impacted by the sentiment risk correspond to difficult-to-arbitrage and hard-to-value stocks, e.g. small stocks, growth stocks, young stocks, unprofitable stocks, lower dividend-paying stocks, intangible stocks and high volatility stocks.
Is Sentiment Risk Priced By Stock Market?
2012
International audience; This study tests if the financial markets price the investors sentiment risk. We construct portfolios based upon the stock returns exposure to sentiment. Our results show that the portfolio returns are positively correlated with the exposure of stocks to sentiment. The strategy that consists of buying stocks with the highest exposure to sentiment and selling stocks with the lowest exposure to sentiment generates a significant raw profit. Exploring the sources of profit, we find that neither the traditional risk factors nor the momentum factor can account for the profit. However, we find that the addition of the sentiment risk premium contributes to explain the profit.
Samsung and Volkswagen Crisis Communication in Facebook and Twitter : A Comparative Study
2017
Since September 2015 at least two major crises have emerged where major industrial companies producing consumer products have been involved. In September 2015 diesel cars manufactured by Volkswagen turned out to be equipped with cheating software that caused NO2 and other emission values to be reduced to acceptable levels while tested from the real, unacceptable values in normal use. In August 2016 reports began to appear that the battery of a new smart phone produced by Samsung, Galaxy Note7, could begin to burn, or even explode, while the device was on. In Nov. 2016 also 34 washing machine models were reported to have caused damages due to disintegration. In all cases, the companies have …
Baltu filoloģija, 29 (1)
2020
“Las banderas y los sueños se degradan, pero queda la educación sentimental” : El último Luis García Montero
2020
En este trabajo analizo los últimos libros de Luis García Montero -Vista cansada (2008), Un invierno propio (2011), Balada en la muerte de la poesía (2016) y A puerta cerrada (2017)- centrándome en las tesis que sigue planteando en ellos en torno a los límites entre lo público y lo privado así como en la reivindicación de la tradición humanista. Me interesa ubicar estos libros en una época en la que es manifiesto el progresivo escepticismo que se produce en el autor desde Vista cansada (2008) en torno al mundo y a la pérdida de los valores democráticos por los que había luchado en los años ochenta. Lo privado se abre en estos últimos libros a lo social, poniendo en dudas sus límites. Sin em…
The Issue Arena of a Corporate Social Responsibility Crisis : The Volkswagen Case in Twitter
2016
This paper explores the online debate in a corporate social responsibility crisis, where multiple actors communicate through social media, each representing different interests and views pertaining to the crisis. The study utilizes Twitter data relating to the recent case of the falsified Volkswagen diesel emissions that became public in 2015. To better understand the online interaction, use is made of issue arena theory and insights on CSR crises. The focus is on capturing the issue as it evolved over time, the actors and sentiments expressed, and the responses of the organization. The findings show that after the case became public, the emissions issue received massive attention in Twitte…
Ethical issues: invasive ventilation in amyotrophic lateral sclerosis.
2012
The first man was a school headmaster. By his eye-gaze system he is able to order coins to enlarge his 10-year collection. His grandchildren extort presents from him in exchange for help. The second was a prefect and even now insists that the flowers in the garden represent the national flag. In spite of his gastrostomy, he still likes to sip his espresso from porcelain cups. The ventilation circuit 24/7 has not changed his custom to read the newspapers and listen to classical music in the living room. That girl is a young mum. She is fed by a tube, but she always makes her little child laugh with the dialectal phrases that she writes on the screen. The surgeon, every day in his electric wh…
Mobilité résidentielle et sentiment d'attachement
2017
La politica su Twitter: analisi di rete e sentiment analysis d'un caso studio
2021
Le interazioni sociali e le opinioni riguardanti la politica, espresse su Twitter da leader, candidati, normali cittadini o influencer, occupano una grossa parte del dibattito politico contemporaneo. Esse possono essere studiate facendo ricorso a tecniche computazionali, che comportano l’estrazione e l’analisi d’una enorme quantità di dati. In questo contributo, mostro le potenzialità di due di queste tecniche: la social network analysis e la sentiment analysis, indagando – come caso studio – il tema della scuola, oggetto di dibattito politico e trending topic su Twitter, nel settembre del 2020. A tale scopo, metto a confronto due reti di discussione diverse, una tematica e l’altra personal…